I have checked <a href="http://code.google.com/p/astrolibpy/source/browse/#git%2Fastrolib">http://code.google.com/p/astrolibpy/source/browse/#git%2Fastrolib</a> and <a href="http://www.astro.ucla.edu/~ianc/python/astrolib.html">http://www.astro.ucla.edu/~ianc/python/astrolib.html</a><br>

Is there a whole astrolib module I can download and install? Or is there any other python module that can makes heliocentric velocity correction you suggest?<br>Thank you very much!<br><br><div class="gmail_quote">On Sat, Jun 9, 2012 at 10:52 AM, gonghang.naoc <span dir="ltr">&lt;<a href="mailto:ghang.naoc@gmail.com" target="_blank">ghang.naoc@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear pythoners:<br> Is there any python nodule that can make heliocentric velocity correction well?<br> Thank you!<br>